Sin cities in which you can pursue vice and debauchery have existed throughout history, from Rome’s glory days when you could follow up your bet on a gladiator with an orgy, to Shanghai where you could float for days in opium dens high on sex and drugs. In the 21st century, new sin cities around the world have taken up the cause and we’ve compiled them all in our list. The criteria for a location to make our sin cities list is pretty simple: It has to offer a strong presence of gambling, sex, drinking, drugs and/or partying. Here are the top 10 sin cities that made the cut.